The Model YST0 are 304 stainless steel Y strainers that are 150# class.
Amazon.com: 3/4" DN20 PT Thread Stainless Steel Y Type Strainer Pump Filter for Water Oil Gas 3/4 Y strainer Y Filter Strainer : Industrial & Scientific
SSI, Stainless Steel, 3/4 in, Y Strainer - 3CFU2|0075-1500Y1TT-1 - Grainger
Y Strainer, Unleaded Bronze | Flomatic
Keckley Company | 316 Stainless Steel
Threaded End SS316 Y-strainer - RFS Hydraulics
Threaded End SS316 Y-Strainers - CHUAN KOK
Model 85 Y strainer | Wye strainers for liquid & gas filtration | Eaton
Series SYS | Stainless Steel Y-Strainer is a cost-effective option for use in any type of industrial application. Seal is constructed of PTFE to ensure long service life. | Dwyer Instruments