The Vita Spas PVT50W R is a compatible replacement for the following spa filters:
The Vita Spas PVT50W Comp. Pool & Spa Filter Cartridge is a pool filter cartridge built with 50 sq. ft. of media area and Open top & bottom holes measuring 2 1/8". This compatible Vita Spas filter is manufactured with dimensions of 5 5/16" x 30 1/8", and efficiently purifies swimming pool/spa water.