Thank you for posting! Can you please give us the weight of your sash? The tip color dictates what weight your spiral balance can support.
29" Series 500 balances with Red Tip will carry a window sash weight range of 7 through and including 29 pounds.
29" Series 500 balances with Blue Tip will carry a window sash weight range of 12 through and including 31 pounds.
This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
Thanks for your speedy reply.
After I had asked the question I was able to find the information, on your site, I needed and ordered the balances. Red tip works well for my needs.
Thanks once again.