Watkins Mfg Corp. No. 31489 (see end cap of filter) Hot Spring C30 Filter Cartridge (fits Solana SZ, Solana TZ, Solana RX, Jetsetter, Sovereign, Prodigy, Aria, Envoy, Vanguard, Grandee, Vista. (all years 1990-Current)
Filters made from high performance silicone with central contortion band. These filters out perform the alternative filters in durability and effectiveness.
- 0.50 KGS