Parts List: 1 × 571-Vac-Chk-A RV Vacuum Breaker Check Valve 1 × Raw Material Belt Highlight description: Product Advantage: 571-VAC-CHK-A RV Vacuum Breaker Check Valves are designed with premium texture and springs with the proper stiffness coefficients to withstand nominal pressures of approximately 8-125 PSI. The spool of the ball valve is made of metal, which is less prone to breakage or other conditions, and the rubber covering of the outer layer prevents the spool from rusting and keeps noise as low as possible. Compatible Models: 571-VAC-CHK-A RV Vacuum Breaker Check Valve is compatible with a wide range of RV models, campers, travel trailers, and motorhomes. 571-VAC-CHK-A RV Vacuum Breaker Check Valve is compatible with Montana Mountainer, Grand Design Reflection, Newmar, Coachman Leprechaun, Keystone:Passport/Outback, Forest River, and other RV blackwater cleaning systems. NOTE: In addition to referencing the listed RVs, it is of utmost importance to check that the nominal diameter of the breaker your pipes are adapted to is 1/2’, this is a prerequisite to ensure a good fit. Premium Texture: the check valve is made of premium texture, which is oxidation, abrasion and aging resistant. It has been rigorously tested to meet strict quality standards for reliable performance and durability. Quality Inspection: The check valve is an original OEM replacement part, perfectly matched, inspected by professionals from manufacturing, warehousing to delivery, through rigorous testing and verification to ensure excellent performance in various application scenarios Easy to Install: Remove the old check valve and confirm the direction of installation: the water should flow in the ‘Flow’ direction indicated by the arrow on the valve body, then connect the check valve to the pipeline. Note: Installation should be approximately 6 inches higher than the flushing unit and ensure vertical installation. Prior to installation, disconnect the water supply and drain any residual water from the pipework. Detailed description: Description: The small overall size and relatively light weight make it easy to install and arrange in a caravan. Key Feature: High working reliability, stable breaking and merging performance, and small contact wear, long service life. Specification: Texture: Plastic, Metal, Rubber Size: 8.5 × 7.5 × 4cm Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement. Premium Texture: the check valve is made of premium texture, which is oxidation, abrasion and aging resistant. It has been rigorously tested to meet strict quality standards for reliable performance and durability. Product Advantage: 571-VAC-CHK-A RV Vacuum Breaker Check Valves are designed with premium texture and springs with the proper stiffness coefficients to withstand nominal pressures of approximately 8-125 PSI. The spool of the ball valve is made of metal, which is less prone to breakage or other conditions, and the rubber covering of the outer layer prevents the spool from rusting and keeps noise as low as possible. Compatible Models: 571-VAC-CHK-A RV Vacuum Breaker Check Valve is compatible with a wide range of RV models, campers, travel trailers, and motorhomes. 571-VAC-CHK-A RV Vacuum Breaker Check Valve is compatible with Montana Mountainer, Grand Design Reflection, Newmar, Coachman Leprechaun, Keystone:Passport/Outback, Forest River, and other RV blackwater cleaning systems. NOTE: In addition to referencing the listed RVs, it is of utmost importance to check that the nominal diameter of the breaker your pipes are adapted to is 1/2’, this is a prerequisite to ensure a good fit. Quality Inspection: The check valve is an original OEM replacement part, perfectly matched, inspected by professionals from manufacturing, warehousing to delivery, through rigorous testing and verification to ensure excellent performance in various application scenarios Easy to Install: Remove the old check valve and confirm the direction of installation: the water should flow in the ‘Flow’ direction indicated by the arrow on the valve body, then connect the check valve to the pipeline.