These PYREX® Claisen adapters have 19/22 Standard Taper outer joints at the upper end and on the parallel sidearm and an inner 19/22 Standard Taper joint at the lower end.
EcoChoice Claim
I-RECS cover 100% of manufacturing electricity consumption
EcoChoice Narrative
One or more facilities manufacturing this product is 100% covered by renewable energy through the purchase of unbundled energy attribute certificates (EACs).