Clamp-On Pod Filter Kit (PK-52) by UNI Filter. Deluxe Urethane End Cap. Uni Pod Filter Kits feature a black urethane end cap black foam element black urethane snout and a stainless steel clamp. (Jetting changes may be required to fully realize the advantages of these filters). Completely washable constructed of a black foam element with deluxe urethane end cap and rubber base for perfect fit. Looks like new after every cleaning.