Add to Cart SKU: 923 3/4 in. In Line-Relief Valve | Buyers $97.00 3/4 in. In Line-Relief Valve | Buyers Buyers Products In-Line Relief Valves have a range of 1501 to 3000 PSI. Each size is set at a different PSI. Available in both SAE and NPT ports. Product... Compare Add to Cart Add to Wishlist