The Valterra RV Gate Valve has a 3" Hub x Spigot connection openings and black ABS body and hubs. The plastic material is great for resistance to corrosion and mild chemicals. Its shaft is made of 304 stainless steel for resistance to corrosion. With a maximum pressure rating of 15 psi, a mid-flow rating of 0.5 psi, and a maximum working temperature rating of 167°F, the gate valve is versatile and durable. The Valterra ABS Gate Valve is suitable for use with RVs, campers, and more. Please note: Paddle is slightly smaller than opening to ease opening/closing. Valve seal gaskets block any gaps to ensure no leaks.• 3" hub and spigot connection• Tight attachment with pre-installed fittings for a leak-proof system• ABS plastic construction resists corrosion• Max pressure rating of 15 psi Shaft is made from 304 stainless steel Maximum pressure rating of 15 psi | Valterra RV Gate Waste Valve, 3" Hub and Spigot Connection in Black | ABS Plastic