In line with the "Zero Maintenance" policy adopted
in the manufacture of Boreline, even the couplings have been
designed with long-term benefits and safety factors in mind.

Stainless Steel (SS 316) is the standard material
used for the couplings due to its life expectancy. Hose Manufacturers
has also released a more economical High
Tensile Polymer (HTP) coupling manufactured from state of
the art materials.
All Boreline couplings are fully re-usable and
each comprise of a body and two outer fastening clamps. The
body contains ribs over which the hose fits and the clamps
tightened. The clamps are each split into three equal
parts ensuring an unyieldingly tight fit.
The couplings are available with either BSP or
NPT male thread for attachment to the pump at one end
and to the head works at the surface.