From the product description, check product page for current description, price and availability:

The MKIII Dual Gauge gas regulator is built to last. With a large body and precision diaphragm, this regulator provides high flow rates and very accurate adjustment.

One of the most common failures in gas regulators occurs because of contamination in the seat or seat cap assembly. The MKIII provides a second sintered filter on the underside of the seat cap assembly to help prevent this contamination. Also the seat cap assembly is fully encapsulated, reducing the chance of contamination if the regulator is opened to be serviced.

The seat and seat cap assembly also now takes advantage of an ultra-high molecular weight polyethylene (UHMWPE) gasket. UHMWPE is significantly better at chemical resistance and stability than the normal Teflon gaskets.

Features:

• 0 – 50 PSI
• 1/4 in Barb
• Improved seat and seat cap design
• UHMWPE gasket provides a better seal
• Fully encapsulated seat assembly helps prevent contamination

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