Stainless steel pinch clamps for use securing plastic or steel insert fittings into Polyethylene (PE) pipe. The Apollo stainless steel poly pipe pinch clamps are ideal for providing a uniform, tamper-resistant seal. Great for irrigation, water supply and beverage supply applications. These durable stainless steel clamps are easy to install. Maximum working pressure is 125 psi (pounds per square inch). Secure pinch clamps with pinch clamp tool.