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S152-4 4 lb Series 152 Coil Balance

I need 2 of each of these pivot shoes and coil blanances for a two double hung lower sashes. The sashes are @ 34 inches wide by 18 inches high. Please let me know if you carry them.

I have a rental home with two windows that won't stay open when opening. The city inspector said I need to repair or replace these windows to comply with the building codes. Only the bottom sash needs to be repaired. The first sash is 16.5" H X 31.5" W. I do not know how much it weighs. The s ... (cont.)

They have a 4 marking. Please advise. Kyle

Is there a formula to estimate the sash weight? I am no longer on the job and don't typically have a scale to weigh the sash anyway. A large sash 37.5 x 25 has coils marked 3 but won't stay up. Could these be the wrong coils? Or are they just worn out? Everything looks intact and not broke ... (cont.)

This is the spring we need to replace at one of our properties. We're hoping to locate the manufacture and purchase asap! Thank you for your time and expertise!

I need the springs the both hold the windows up for both sides but I don't know what kind of windows they are I do know that the windows wait 8 pounds if that helps and here's the picture

I have an aluminum, double hung, tilt window of unknown make. Window (including frame) is 27 1/4" tall. I need to replace 2 complete assemblies as shown in attached pic. Coil stamped 407-S. Your series 140?? From label on sash, manuf. might be Hyde Park/Easton DH?? NFRC 100/200; VIM-1-014 02-M ... (cont.)

Coils are stamped with letters EL on one and D on the other, they are 1/2 inch wide, sash weighs 20 lbs. TIA

the only markings on the coil are an EL on the top one and a D on the bottom one. also the plastic cover for the top coil has an I and the plastic cover for the bottom coil has a N the housing that the coils are secured to has a #2 stamped into the plastic

Hi, Can you tell me what the dimensions are on the ID and OD of the S152 - 4 and 5 lb springs please? Thank you, Matt S.