Weighting rings, O-shape

Stabilizing rings with heavy lead core, closed version
With orange PVC coating to protect the vessels
For weighting of glass containers such as Erlenmeyer flasks,
in order to prevent from floating or falling in a water bath

	article- no.	inner - Ø	outer Ø	weight ca.	for erlenmeyer flasks with narrow neck	price per pc.
	SR48	48 mm	82 mm	260 g	100 - 500 ml	16,90 €
	SR56	56 mm	98 mm	510 g	250 - 1000 ml	18,90 €
	SR61	61 mm	110 mm	780 g	500 - 2000 ml	23,90 €
	SR74	74 mm	125 mm	980 g	1000 - 3000 ml	27,90 €