Description
White pre filter bags 200miron — 4-inch filter sock kit with mounting bracket
A sump intake without a sock on it will push every bit of fine floating debris straight into the return pump, and that debris ends up right back in the display. White pre filter bags 200miron (SKU: PFB1027200) is Absolute’s 4 in filter sock kit, supplied with a plastic bracket and one 200-micron white filter bag, built to hang on the inside of a sump or filter chamber over an overflow pipe so water passes through the felt or mesh bag before reaching the pump. The bracket is a space-saving, hang-on design that clips over the glass without needing screws or silicone, and it is rated for aquarium glass up to 10 mm thick.
The included bag fits over a 10 cm (4 in) diameter pipe and measures roughly 10 cm in diameter by 20 cm long, with a 200-micron mesh rating, fine enough to catch fine particulate and floating debris while still passing water quickly enough not to overflow the chamber it sits in. A bag of this rating is typically rinsed or replaced on a regular cycle once it visibly loads up with debris and the flow through it slows, since a clogged sock backs water up rather than filtering it properly. The bracket itself is reusable indefinitely; it is only the bag that wears and needs replacing over time, and spare bags in the same 200-micron rating can be fitted to the same bracket without buying a new kit. This kit suits sump-based marine and reef systems primarily, where a filter sock is the standard first mechanical stage before water reaches the return pump and any further media.
Usage & Application
When to Use
- Sump-fed systems: A first mechanical stage ahead of the return pump.
- Fine particulate control: Catching debris a coarser sponge or media would let through.
- Glass up to 10 mm thick: The bracket clips on without screws or adhesive.
- Reef and marine displays: Standard first-stage filtration ahead of skimmers or media reactors.
Placement & Usage Guide
- Clip the bracket on: Hang it over the sump wall near the overflow, glass up to 10 mm thick.
- Fit the bag: Slide the 200-micron bag over the bracket’s 10 cm opening.
- Position under the overflow: Let water from the overflow pipe fall into the bag.
- Rinse or replace regularly: Clean or swap the bag once flow through it visibly slows.
Product Specifications & Highlights
Key Features
- 200-micron rating: Fine mechanical filtration for sump and filter chambers.
- No-screw bracket: Hangs on glass up to 10 mm thick without drilling or silicone.
- 4-inch fitting: Bag sized for a 10 cm diameter overflow or pipe.
- Reusable bracket: Only the bag needs replacing once it wears out.
- Space-saving design: Hangs inside the sump without extra plumbing.
Product Details
- Brand: Absolute
- SKU: PFB1027200
- Barcode (GTIN/EAN): 9334141008078
- Product Type: Filters > Filter Sock / Pre-Filter Bag
- Included: 1 x 200-micron filter bag, plastic mounting bracket
- Bag Size: About 10 cm (4 in) diameter x 20 cm long
- Glass Compatibility: Up to 10 mm thick
- Target Environment: Marine and reef sump systems


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