Slide Valves

Isolate filtration lines and flush heavy pond waste instantly with our range of high-performance PVC-U slide valves, paddle valves, and Valterra knife gate valves. Engineered specifically for gravity-fed drainage lines, settlement chambers, and bottom drain purge circuits, slide valves provide an unrestricted, full-bore shut-off solution that makes routine filter maintenance fast and hassle-free.

Manufactured with durable PVC bodies, corrosion-resistant stainless steel shafts, and replaceable EPDM rubber lip seals, our slide valves are built to withstand continuous aquatic use and repeated manual operation. The simple push-pull handle pulls the internal gate paddle completely clear of the waterway when opened, eliminating internal restrictions so that heavy solids, string algae, and settled fish waste can flush out of filter bays and vortex sumps without clogging or snagging. They are also ideal for temporary isolation of gravity-fed sieve feeds, drum filter inlets, and skimmer lines during routine cleaning or equipment servicing.

Available in standard solvent weld sizes ranging from 1.5 inch and 2 inch for small purge lines up to 3 inch and 4 inch diameters for high-volume gravity feeds and bottom drain manifolds, explore our complete slide valves collection to find dependable, keeper-approved isolation valves engineered for smooth, unrestricted water flow.