Free shipping on all orders over $50
7-15 days international
11 people viewing this product right now!
30-day free returns
Secure checkout
17176257
Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Available in 0.25", 0.5", 0.625", 0.75" and 1.00" lengths. Outside diameter is 1.90". Anodized black aluminum, internally threaded for light baffling. Made in USA.