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Adapter 1"-20 to 13/16 ID Hose, P/N 1393K, for Welch Pump Models 1402 1405 1376: Amazon.com: Industrial & Scientific
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PKS S3 Pump Adapter for Duotone and North Airport Valves with Silicone Ring | Pump Accessories | Fix My Kite
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Adapter 1-3/4"-20 to KF40 NW40, P/N 1393H, for Welch (New Style) Pump Models 1374 1397: Amazon.com: Industrial & Scientific
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Adapter 3/4"-20 to KF25 NW25, P/N 1393V, Pump Models 1399 and 1400: Amazon.com: Industrial & Scientific
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