ZOTEE PWK30 Spa Filter Cartridge Replacement for Watkins 31489, C-6430RA,Darlly 60301,Filbur FC-3915,P/N0969601,71825,73178,73250,75401,Hot Spring Spa Filters,3 Pack

SPA FILTER SPECIFICATIONS:Length:10 1/2",outside diameter:6",top:1 15/16" open,bottom:1 15/16"open.

PLACEMENT MODELS:Watkins 31489 aquaterra spa filter compatible with PWK30,Unicel C-6430,Unicel C-6430RA,PLE-051-9186,PLE-051-9670,71825,73178,73250,75401,13004,46200,4900-173,Balene AK-5005,APCC7095,APCC7095M,Pure N Clean PC-3915,Darlly 60301,Filbur FC-3915.

MORE EFFICIENT FILTRATION AREA:Filtration area of hot springs spa filter is 30 sq.ft.Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric.The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleanining frequency.

DURABLE FILTERS:Spa filter has unique trilobal filtration fabric structure,it makes spa filter easier to capture large volume of contiminants.

EASY TO WASH:The trilobal fabric structure filter material makes it easy to release impurities when cleaning the filter,the pool filter is like a new one after cleaning. It is recommended that you clean filter cartridges every 2 weeks to maximize your spa's performance.