Sea Tech Metric Series 1/2" FQCx1/2" FQC Plastic Uni-Directional Fresh Water Check Valve 013540-10 10-8186Manufacturer: Sea Tech Availability: 54 in stockSKU: 10-8186 Item No: 10-8186 Brand: Sea TechMfg No: 013540-10Wt: 0.06UPC: 840213134723 $10.57 Qty: Add to cart Ship toSelect countryUnited States of America *Other *Shipping MethodNameEstimated DeliveryPriceNo shipping optionsApply Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend1:It has 1/2 inch female quick connect copper tube end x 1/2 inch female quick connect copper tube end fitting. It is made of thermal plastic & sold in retail packaging. These are FDA approved & NSF-61 certified for contact with drinking water.