Series 300 is a sleeve type rubber expansion joints. This slip-on and lightweight construction represents the most cost-effective arrangement for low pressure applications. Mating flanges and hardware are not required, adding to the cost-effectiveness of this arrangement. The construction includes a high-grade tube, a seamless cover, multiple layers of high-strength tire cord and stainless steel worm gear clamps. Additionally, they are designed to absorb large all-directional movements, reduce noise and vibration and misalignments.

These joints are available in:

1 arch, 2 arch, 3 arch, 4 arch, 5 arch and even 6 arches.

Mercer specially designs these joints for seismic control by adding anti-squirm guides