Cast copper swing check valve Made of brass for strength and durability Metal-to-metal seal, threaded brass body Brass swing check valve prevents reverse flow of water in the application 59-1 fine copper punching process, national standard plating. Double throw double plating, lasting and novel. Upgrade all copper handles, thicken and widen hex nuts. Switching valves that pass through the gun are widely used. Bubble bag packaging, pearl cotton bag packaging, separate carton packaging product weight: 80 tons of precision high speed punching machine, The product has the characteristics of one-time molding, high density and stable quality, and it is durable. High-precision, high-quality ceramic spools with a service life of 500,000 cycles. The surface coating meets the requirements of the new national standard and can pass the 24-hour salt spray test. The full range of products can be supplied in single or blister packs for worry-free use. Colour:Silver Material:brass Size:Inner diameter 20mm Package Contents: 1*Straight through shower gun switch valve Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.