US Water Systems
3/8" Quick Connect x 3/8" MPT John Guest Fitting | PP011223W
USD 3.80
Plumbing Deals
3/8" Tube OD x 3/8" NPFT Male Connector - PP011223W-US
USD 16.45
WeSourceUSA
John Guest Adapter, Tube Od 3/8 In., Poly, Pk10, 8 In (PP011
USD 67.16
Mrosupreme.com
John Guest PP011223WP Pipe Connector, 3/8 in, FNPT, Polyprop
USD 2.36