RV Roller Shade Springs Replacement Guide | 1-Inch Diameter Valu-Line

Irvine's published 1-inch Valu-Line chart places a 37-inch shade in its Medium category, not Large. The manufacturer chart lists Small for 20–29-inch shade widths, Medium for 30–59 inches and Large for 60 inches and above. Those categories apply only after the shade has been identified as the corresponding Irvine system; they do not establish a universal spring length or diagnose why this shade will not stay down.

Our 1-inch Valu-Line spring listing currently has native MRS-SR25S and MRS-SR25L options. Its two-option catalog labels are not a verified crosswalk to the manufacturer's three categories. Neither the earlier Large/24-inch recommendation nor the spring's widest plastic end alone establishes the correct native part number. Confirm the tube's actual outside diameter, internal engagement profile, original spring markings, end fittings and shade width against the manufacturer's mechanism-specific replacement guide before choosing a part. Do not force a mismatched insert into the tube.

A shade that will not stay down does not by itself prove that the spring is the failed component or identify an auto-stop, adjustment or repair. The original mechanism and failure need identification before applying any model-specific instructions.

The historical return-label, waived-fee and prompt replacement-shipment statements are not a standing authorization. Return eligibility, any shipping or restocking charges and any replacement require review of the actual order and approved terms. This Page does not confirm a label, fee waiver, replacement approval, stock or shipment date.