... Injection Pvc moulds 2.Seamless titanium tube 3. Compact design 4. R22, R410a,R407c,R134a Heat pump heat ... protection.They are suited to the use by swimming pool, seafood markets, and electroplating, chemical and medical ... PVC-U, PP-R, stainless steelExcellent PVC plasticCompact design with high heat transfer ability.Suitable for R22, R134a ... /sea water/antifreeze 10.5kw Spa pool heat pump heat exchanger