New Snow Performance high flow check valves offer superior safety and flow requirements compared to other water-methanol check valves on the market. Custom made with 100% methanol resistant stainless steel spring, snap ring, and EPDM seals for no corrosion even with high methanol concentrations. Black anodized with Snow Performance Running S logo. 20 PSI cracking pressure, 1/8" NPT ports, Quick Connect Fittings, 100% methanol resistant. • Some out of stock items are drop shipped from a distribution warehouse or directly from the manufacturer, so tracking information may not be available immediately. • Tracking numbers will be updated to as quickly as possible once an order has processed and shipped. Tracking numbers are updated manually, so please allow enough time for your information to.