RX – Series (Rigid PCA Hose Insulated)For maximum insulation value and extreme weather resistance. The RX Series hose is a modular design which incorporates as much as 2 (standard 1) of insulation with no voids and a 100% weatherproof exterior shell. Since the pitch on the wire support and the insulation level is adjustable this hose is an excellent candidate for all above ground applications that are exposed to extreme UV and or high heat humidity levels.