Potter / Amseco Potter MPEX Explosion Proof Manual Pull Station JMAC# POTTER-MPEX Explosion Proof MPEX Pull Stations are designed for use in Class I, II, and III hazardous areas. A hinged cover holds a sliding actuator plate in place. By lifting the cover and pulling down the ring, a compression spring is released, thus allowing the... MSRP: Was: Now: $668.79 In Stock Expedited Shipping Available Need it Tomorrow? Need it Tomorrow? Select the NEED IT FAST shipping option at checkout and a member of our team will contact you promptly with any available Expedited Shipping options once we receive your order. Add to Cart