2. Starting and restoring force confirm to API standard.
3. Designed for High Restoring Force and Low Starting & Running Force for centralizing the casing pipe in Vertical, Horizontal and Deviated well.
4. Extended profile bows for prevent them from hitting against casing collars.
5. Easy for installation.
Available Size: 4-1/2” to 20”
(Any special sizes or combination can available on request). These are generally shipped in half assembled condition for economy in shipping and storage costs.