TwistIIClean Inline Filters/Strainers patented Twist-to-Clean-Design. Ideal for industry, agriculture, water well, irrigation, misting systems, etc. Just a 1/4 turn of the handle starts the reverse flushing action which backwashes from the inside out. Debris is cleaned off the screen and flushed out the bottom purge port. Filter / Strainers come standard with a polypropylene body/acrylic bowl, EPDM top seal, Viton bottom seal and a stainless steel screen. MPT or flange ports as noted. Rated to 100 PSI and 120 Deg F. Always check for chemical compatibility.