Best-all supplies valve, valve insert, valve spring and seat for HT-400, SPM600S, SJ300, SJ600 TPH400, TPD600 plunger pumps..
The valve and seat are made by 8620H alloy steel and heat-treated.
The valve inserts are made of urethane or HSN.
The valve springs are made by stainless steel.
100% interchangeable with OEM parts
Available from 3-3/8" to 5".
