A Perfect Fit: Our type VI SPA filters measure is 4.1”x 3.1”and Compatible with Bestway, Lay-Z-Spa, Coleman, SaluSpa, Intex and all other Type VI filter inflatable hot tub. Quality Priority: The type VI spa filters cartridge for the pool adopts a densely trilobal structure fabric that captures 3x more contaminants than regular fabric. VI filters for inflatable hot tub assure you of safe and no-worry happy times. Great Filtration Performance: Premium quality Dacron fabric collects hair, leaves, dust, sediment, sand, etc. The pool filter VI is committed to keeping your pool / spa water crystal clear and give your swimming pool pump its best performance. A dense pleating structure provides a larger filtration area than the common filters of the same size and makes the filtration higher efficient, bring you ultimate experience in your pool and spa time. Easy to Clean & Replace: The hot tub filters replacements feature extra-durable plastic and high-performance trilobal fabric make it easier to capture and release stains, so it's easy for you to wash the filter after use. Scrub with a cartridge cleaner tool, then wash under a strong water pressure to remove loose particles when neccessary. Long Lasting: 6 type VI spa filters and 1 oil-absorbing sponge included. For best results, clean your Spa filter cartridge replacement often and replace every 2–3 weeks during heavy usage.