Glass filled Polypropylene (CP-04) with 1⁄8 ” threaded female inlets and outlets.
Using a patented needle/seat design, they provide instant shut off. The stainless needle seats into an O-Ring in a stainless core. There is Viton diaphragm protected by a Teflon diaphragm on the needle.
Flow capacity is 5.2gpm at 40psi, springs will begin to open at approximately 12psi. For entire boom to open it is recommended that a minimum of 30psi be applied.