JMF is a range of modular and structural preformed access chambers. Available in the 102, 104 and 106 sizes, JMF is approved for use on the BT/Openreach
Supplied in 150mm deep twinwall rings, chambers are built by stacking sections until the required depth is reached. Each section weighs under 25kg, making it suitable for a single person to lift under manual handling guidelines.
The JMF system is moulded in HDPE and possesses excellent strength to weight properties. Each section is ribbed internally to improve loading performance.
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