37″ Black Tip Alumatilt HD Spring Balances -Pair of (sbbt37)

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Description

 

Suitable to take a sash weight of between 14 and 18 kgs

Approx turns required

14kg – 9 & 1/2 turns

15kg – 11 turns

16kg -12 turns

17kg – 13 turns

18kg – 14 turns