Stamp option on channel balance
Home Owner from San Diego
Jul 25, 2020 4:14 pm
Not sure which strength to purchase. Channel says 21 5 IR CALDWELL
2 Replies
Tom from SWISCO
Jul 28, 2020 2:35 pm
A stamp of 21 5 usually corresponds to our "2150" stamp option. If you have any doubts, you can always weigh your sash and refer to the chart on the S385-22 store page to confirm.
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