UltraPure Check Valve Kit [1-1/2 lb] (1008011) astral Hi-limit sensors are useful because

Hi-limit sensors are useful because they help protect the system by monitoring conditions that should trigger protective response before overheating becomes a larger problem

The Darlly 40371 filter cartridge is made for compatible filtration systems that require 35 square feet of media with 2-1/8 inch top and bottom openings

6 amp draw and 56Y square-flange configuration

Filter cartridge for compatible C-4440 and PSD40 spa and pool applications

UltraPure Check Valve Kit [1-1/2 lb] (1008011) astral Hi-limit sensors are useful becauseUltraPure Check Valve Kit [1 1 2 lb] (1008011) is a replacement check valve kit for compatible UltraPure ozone systems. Check valves help control airflow direction and reduce the risk of water moving back toward sensitive ozone equipment. This kit is a useful service part when the existing valve is clogged, stuck, leaking, or no longer protecting the system properly. Confirm pressure rating, tubing layout, and part number before installation.