●COMPATIBLE WITH PENTAIR PENTEK STANDARD HOUSING SUMPS and most other major brands ●EASILY REMOVES FILTER HOUSINGS for quickly changing water filter cartridges ●HELPS LOOSEN STUCK OR JAMMED FILTER HOUSINGS ●SUITABLE FOR USE in installing or replacing filter cartridges ●CONSTRUCTED OF DURABLE PLASTIC for stability and resistance to corrosion ●Compatibility: WLCS-1000, WRO-3000 and WRO-3500 Filtration Systems.