Pondmaster Clearguard Pressurized Pond Filters Size:Pondmaster Clearguard Model 5.5 (NON UV) Pressurized Filter for 5500G Pond This helps prevent dock pilings

This helps prevent dock pilings from damage caused by ice expansion and pressure damage

5" x 6" 16lb

but it maintains water clarity at the same time

RS003 - Leaf basket

Pondmaster Clearguard Pressurized Pond Filters Size:Pondmaster Clearguard Model 5.5 (NON UV) Pressurized Filter for 5500G Pond This helps prevent dock pilingsPondmaster Clearguard Pressurized Pond Filters maintain a clean pond by combining biological filtration with mechanical filtration! This unique pressure filter boosts beneficial bacteria using biological media while, at the same time, polishing water with a reusable filter pad. Easy to install and easy to use, and will effectively lower ammonia and nitrite levels in the water. The integrated UV Clarifier (select models) in Clearguard filters controls