{"product_id":"gardis-pro-fan-silencer-250mm-600mm","title":"Fan Silencer 250mm × 600mm by Gardis Pro — Inline Noise Reducer for Grow Room Exhaust Systems","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; color: #1a1a1a;\"\u003e\n\n  \u003cp style=\"font-size: 1.05rem; line-height: 1.7; margin-bottom: 1.5rem;\"\u003eFan noise is one of the most common giveaways in a grow room — and one of the easiest to fix. The Gardis Pro Fan Silencer drops inline with your existing 250mm ducting run and absorbs the hum, rumble, and airflow turbulence before it travels through your walls or ceiling. No soundproofing overhaul. No fan swap. Just quieter air moving through your setup.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eWhy Growers Use It\u003c\/h2\u003e\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eKills Fan Hum\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eSound-absorbing internals convert acoustic energy before it exits the duct — knocking down the low-frequency drone that travels through ceilings and walls.\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eDrop-In Fit\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eSized for standard 250mm ducting. Slots directly into your existing exhaust run — no adapters, no modifications, no tools required.\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eAirflow Preserved\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eDesigned to minimise static pressure resistance. You lose noise, not airflow performance — your extraction rate stays where it needs to be.\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n      \u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eWorks Any Setup\u003c\/strong\u003e\n      \u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eSuits tents, rooms, and cabinet builds alike. If it runs 250mm ducting and a carbon filter, this silencer fits the run.\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eSpecifications\u003c\/h2\u003e\n  \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; margin-bottom: 2rem; font-size: 0.95rem;\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 250mm\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 600mm\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.7kg\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003ePackaged Dimensions:\u003c\/strong\u003e 34 x 34 x 65cm\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eIn the Box:\u003c\/strong\u003e 1 x Gardis Pro Fan Silencer 250mm x 600mm\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f9a825; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 2rem;\"\u003e\n    \u003cstrong style=\"color: #e65100; display: block; margin-bottom: 0.5rem;\"\u003eBefore You Buy — Good to Know\u003c\/strong\u003e\n    \u003cul style=\"margin: 0 0 0 1.2rem; padding: 0; font-size: 0.93rem; line-height: 1.7;\"\u003e\n      \u003cli\u003eAt 3.7kg, this is a solid unit. Do not suspend it from duct clips alone — use a mounting bracket or ratchet straps rated to the weight if ceiling-mounting. Most growers rest it horizontally on a shelf or frame within the exhaust run.\u003c\/li\u003e\n      \u003cli\u003eAll inline fittings add a small amount of static pressure resistance. If your fan is already at the limit of its airflow capacity, factor this in — or size your fan up slightly.\u003c\/li\u003e\n      \u003cli\u003ePosition the silencer directly after the fan outlet, before the carbon filter or exhaust point, for maximum noise reduction at the highest-pressure point in the run.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eHow to Install It\u003c\/h2\u003e\n\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n    \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e1\u003c\/span\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003ePower down your inline fan\u003c\/strong\u003e before touching any ducting. Disconnect the section of duct where the silencer will sit — typically directly off the fan outlet.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n    \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e2\u003c\/span\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eSupport the silencer independently\u003c\/strong\u003e — mount it on a bracket, ratchet strap, or shelf before connecting ducting to either end. The silencer should carry its own weight, not hang from the duct connections.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n    \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e3\u003c\/span\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003eConnect 250mm ducting\u003c\/strong\u003e to the inlet end (fan side) and outlet end (filter or exhaust side). Secure with duct clamps and seal joins with aluminium tape to prevent air and odour leaks.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; font-size: 0.93rem; line-height: 1.6;\"\u003e\n    \u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e4\u003c\/span\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003ePower up and check for leaks\u003c\/strong\u003e — run your hand along duct joins with the fan running. Any hiss or airflow means a gap that needs sealing. Once airtight, you're done.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem; margin-top: 2rem;\"\u003ePairs Well With\u003c\/h2\u003e\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n    \u003ca href=\"\/collections\/inline-exhaust-fans\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eInline \u0026amp; Exhaust Fans\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe silencer works hardest when placed directly after a quality inline fan. Browse our full inline fan range for 250mm-compatible options.\u003c\/p\u003e\n    \u003c\/a\u003e\n    \u003ca href=\"\/collections\/odour-control-carbon-filters\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eCarbon Filters\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eRun the silencer inline between your fan and carbon filter for a setup that handles both noise and odour in a single exhaust run.\u003c\/p\u003e\n    \u003c\/a\u003e\n    \u003ca href=\"\/collections\/environment-controllers\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eEnvironment Controllers\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eVariable speed fan controllers let you run fans slower and quieter without sacrificing environmental control — a natural partner to any silencer.\u003c\/p\u003e\n    \u003c\/a\u003e\n    \u003ca href=\"\/collections\/grow-tents\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\n      \u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eGrow Tents\u003c\/strong\u003e\n      \u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eIf you're running a tent setup, a silencer on the exhaust port is one of the most effective upgrades for keeping noise out of the room.\u003c\/p\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 1.1rem; font-weight: 700; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eFAQ\u003c\/h2\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWill this silencer fit my 250mm inline fan?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes — the Gardis Pro Fan Silencer is designed for standard 250mm ducting and connects directly to any 250mm inline fan outlet without adapters. Confirm your fan's outlet diameter is 250mm before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes a fan silencer reduce airflow?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes, marginally. Any inline fitting adds static pressure resistance to the duct run. The Gardis Pro is designed to minimise this, but it is not zero. If your fan is already working at the upper limit of its rated airflow for your space, factor this in — or consider stepping up one fan size when running a silencer.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhere should the silencer be positioned in the duct run?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eDirectly after the fan outlet, before the carbon filter or exhaust point. This is where fan-generated noise pressure is highest and where the silencer delivers the greatest acoustic reduction. Placing it further down the run reduces effectiveness.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eCan I mount this silencer hanging from the ceiling?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes, but not from duct clips alone. At 3.7kg, the silencer needs independent support — a proper mounting bracket or ratchet straps rated to the weight. Most growers lay it horizontally on a shelf or frame within the exhaust run rather than free-hanging it.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n    \u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDo I need to seal the ducting connections with tape?\u003c\/summary\u003e\n    \u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes. Any unsealed join in an exhaust run is a potential odour and noise leak point. Use aluminium tape over duct clamps at both the inlet and outlet connections to keep the run fully sealed. This is good practice on any ducting connection, not just silencer installs.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdiv style=\"background: #1c3a1c; color: #fff; padding: 2rem; border-radius: 10px; text-align: center; margin-top: 2rem;\"\u003e\n    \u003ch2 style=\"color: #fff !important; margin: 0 0 0.5rem; font-size: 1.3rem;\"\u003eQuieter Runs Start Here\u003c\/h2\u003e\n    \u003cp style=\"color: #aed1ae !important; margin: 0 0 1.5rem; font-size: 0.95rem;\"\u003eOnly 7 available. One unit per exhaust run — grab one while stock lasts.\u003c\/p\u003e\n    \u003cdiv style=\"display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;\"\u003e\n      \u003cbutton id=\"btn-add-to-cart\" style=\"background: #4caf50 !important; color: #fff !important; padding: 0.85rem 2rem !important; border: none !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 700 !important; cursor: pointer !important;\"\u003eAdd to Cart\u003c\/button\u003e\n      \u003ca href=\"\/collections\/inline-exhaust-fans\" style=\"background: transparent !important; color: #fff !important; padding: 0.85rem 2rem !important; border: 2px solid #fff !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 600 !important; text-decoration: none !important; display: inline-block !important;\"\u003eBrowse Inline Fans\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  var btn = document.getElementById('btn-add-to-cart');\n  if (!btn) return;\n  btn.addEventListener('click', function() {\n    fetch('\/cart\/add.js', {\n      method: 'POST',\n      headers: {'Content-Type': 'application\/json'},\n      body: JSON.stringify({id: parseInt('51382986866986', 10), quantity: 1})\n    }).then(function(response) {\n      return response.json();\n    }).then(function(data) {\n      if (data.status \u0026\u0026 data.status !== 200) { throw new Error(data.description); }\n      btn.textContent = 'Added to Cart';\n      btn.style.background = '#388e3c';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2000);\n    }).catch(function() {\n      btn.textContent = 'Error — Try Again';\n      btn.style.background = '#c0392b';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#4caf50';\n      }, 2500);\n    });\n  });\n});\n\u003c\/script\u003e","brand":"Gardis Pro","offers":[{"title":"Default Title","offer_id":51382986866986,"sku":"GP-ENV-SIL-250MM","price":124.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/files\/Fan-Silencer-250mm-x-600mm-by-Gardis-Pro-Inline-Noise-Reducer-for-Grow-Room-Exhaust-Systems.png?v=1776901785","url":"https:\/\/www.thegrowguys.com.au\/products\/gardis-pro-fan-silencer-250mm-600mm","provider":"The Grow Guys","version":"1.0","type":"link"}