{"product_id":"4-pre-sump-filter-sock-aquarium-filter-socks-150-200-micron-fish-tank-felt-filter-bags-for-reef-tank-micron-bag","title":"Aquarium Pre-Sump Filter Socks (4\" Opening, 150\/200 Micron Felt)","description":"\u003ch2\u003e🐾 Product Overview\u003c\/h2\u003e\n\u003cp\u003eAquarium pre-sump filter socks — 4-inch opening, 150\/200 micron felt, reef tank micron bags — these aquarium pre-sump filter socks provide high-efficiency mechanical filtration for sump systems with a 4-inch standard opening for direct pipe connection, felt construction in 150 or 200 micron for fine particle capture, and reef tank compatibility for marine and saltwater applications. Filter socks are the primary mechanical filtration stage in sump systems — positioned at the drain pipe where tank water first enters the sump, they capture fish waste, uneaten food, and organic particles before they break down and contribute to nitrate buildup in the system.\u003c\/p\u003e\n\n\u003ch2\u003e✨ Key Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🕸️ \u003cstrong\u003eFine Micron\u003c\/strong\u003e — 150\/200 micron felt captures fine organic particles before sump entry.\u003c\/li\u003e\n\u003cli\u003e📏 \u003cstrong\u003e4\" Opening\u003c\/strong\u003e — Standard size for direct sump drain pipe connection.\u003c\/li\u003e\n\u003cli\u003e🌊 \u003cstrong\u003eReef Ready\u003c\/strong\u003e — Suitable for marine and saltwater reef tank sump systems.\u003c\/li\u003e\n\u003cli\u003e🧹 \u003cstrong\u003ePre-Filter\u003c\/strong\u003e — Intercepts waste before it degrades water quality in the sump.\u003c\/li\u003e\n\u003cli\u003e🔄 \u003cstrong\u003eWashable\u003c\/strong\u003e — Felt construction rinses clean for repeated use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e📦 What's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Set of aquarium pre-sump filter socks (4\" opening, 150\/200 micron felt)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e📏 Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening:\u003c\/strong\u003e 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 150 or 200 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Felt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest for:\u003c\/strong\u003e Sump systems, reef tanks, saltwater aquariums, pre-filter mechanical filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e💖 Why You'll Love It\u003c\/h2\u003e\n\u003cp\u003eFilter socks are the unsung workhorses of sump-based filtration — they handle the physical waste removal that all other filtration stages depend on, capturing particulate matter at the system entry point so that biological media, refugiums, and skimmers can focus on dissolved waste rather than competing with solid organic particles. In reef tanks specifically, where coral health depends on pristine water quality and low dissolved organic levels, filter socks that capture fine particles at the 150-200 micron level reduce the organic load that would otherwise break down into nitrates and phosphates that bleach corals and fuel algae growth. Rotating two filter socks — one in use while the other dries — allows daily or every-other-day changes without needing to wet-rinse and immediately reinstall a dripping sock.\u003c\/p\u003e\n\n\u003ch2\u003e🛒 Order Yours Today\u003c\/h2\u003e\n\u003cp\u003eAquarium pre-sump filter socks — 4-inch opening, 150\/200 micron felt. Order today! 🐾\u003c\/p\u003e","brand":"Pup Supplies","offers":[{"title":"200 micron","offer_id":52010136240426,"sku":"5:100014066#200 micron","price":10.99,"currency_code":"USD","in_stock":true},{"title":"150 micron","offer_id":52010136273194,"sku":"5:100014064#150 micron","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/5709\/7258\/files\/Sb9f7afd716814bc7885ea2909006f7fas.webp?v=1782668839","url":"https:\/\/pupsuppliesstore.com\/products\/4-pre-sump-filter-sock-aquarium-filter-socks-150-200-micron-fish-tank-felt-filter-bags-for-reef-tank-micron-bag","provider":"Pup Supplies","version":"1.0","type":"link"}