Klir Automatic Drop-In Filter 4" v2

The Klir Di-4 V2 is an automatic drop-in fleece filter that replaces 4-inch filter socks in a reef or fish-only sump, physically capturing waste before it breaks down and raises nutrient levels.

• Rated flow capacity: up to 750 GPH
• Filtration rating: 50-micron fleece
• Fleece roll length: 25 yards
• Sump lid opening required: 7.125 inches
• Clearance needed below filter sock tray: 8.125 inches
• Swappable collars included: 3.9" and 4.25"
• Motor: 12V DC geared motor, 0.6A

An optical sensor watches fleece saturation and advances a fresh section of clean fleece automatically once the current section clogs, so the filter keeps running between water changes instead of needing a sock swapped by hand — the main reason hobbyists upgrade from filter socks in the first place.

Includes: Klir Di-4 drop-in filter unit, V2 Smart Controller with magnet-mount optical sensor, 12V/0.6A DC geared motor, 25-yard 50-micron fleece roll, activated carbon insert, two swappable collars (3.9" and 4.25").

Compatible with: Sumps with a 4-inch filter sock chamber; no plumbing modifications required for drop-in installation.

At Marine Concept Supply, all sales are final. Due to the sensitive nature of live animals and aquatic products, we do not accept returns or exchanges under any circumstances. Please review your order carefully before completing your purchase. No Cancellations.

If you have any questions or concerns about your order, please contact us at shop@marineconceptsupply.com and we’ll do our best to assist you.

We Ship UPS and will send tracking as soon as the item ships. 

Return shipping for any approved warranties are not covered and will be subtracted from the approved credit total.

Restock Fees apply to some products, due to their size or a manufacturer policy.Each product with a restock charge is marked online, in the description.

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right