Flow-Through Quick Disconnect Couplers Positive seal. Rapid connect / disconnect. Compatible with aggressive germicides All commonly used sizes and materials available. Product Listing D300-0112 Female to 1/4 in. Barb, Polypro D300-0113 Male to 1/4 in. NPT, Polypro D300-0113D Male to 1/4 in. NPT, Acetal D300-0116DS Female to 3/8 in. NPT, w/ shutoff, Acetal D300-0116S Female to 3/8 in. NPT, w/ shutoff, Polypro D300-0117D Male to 3/8 in. NPT, Acetal D300-0117DS Male to 3/8 in. NPT, w/ shutoff, Acetal D300-0118 Female to 3/8 in. Barb, Polypro D300-0118D Female to 3/8 in. Barb, Acetal D300-0118DS Female to 3/8 in. Barb, w/ shutoff, Acetal D300-0118S Female to 3/8 in. Barb, w/ shutoff, Polypro D300-0119S Male, Panel Mt. to 3/8 in. Barb w/ shutoff, Polypro D300-0122 Female PM to 3/8 Plytb, PP D300-0122S Female, Panel Mt. to 3/8 in. Polytube, w/ shutoff, Polypro D300-0123D Small Male to 1/8 in. Hose Barb, Acetal D300-0124DS Male to 1/4 in. Hose Barb, Acetal, w/ shutoff