For connecting interchangeable joints, Warburg flasks, washing bottles and other apparatus where glass hooks are provided. Supplied assortment of 12 each size.
Kit includes 87 stainless steel springs:
- (12) 1.3cm 1/2" stainless steel springs
- (12) 1.9cm 3/4" stainless steel springs
- (12) 2.5cm 1" stainless steel springs
- (12) 3.2cm 1-1/4" stainless steel springs
- (12) 3.8cm 1-1/2" stainless steel springs
- (12) 4.4cm 1-3/4" stainless steel springs
- (12) 5.1cm 2" stainless steel springs
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