WRS Caldwell Series 40 Spiromite Spiral Balance for NonTilt x SideLoad Windows
The Series 40 Spiromite Spiral Balance is a dependable solution for non-tilt (side-load) window systems, built with a slim 3/8 ” pencil-type tube that fits easily into narrow window channels. Each balance uses a precision spiral rod to counterbalance sash weights, ensuring steady lift support and smooth window operation.
15in Caldwell Series 300 5/8in Channel Block x Tackle Window Balance Stamp 149
The 300 Series is a standard block and tackle window balance for sideload / non-tilt window applications. 5/8″ Channel Depth. Balances include standard non-winged top and bottom guides. Includes the balance and pre-installed top and bottom guides only.
WRS Series 320 17in Extended Travel Apex Block x Tackle Balance | 162 (68.99 lb
Bring your non-tilt, side-load windows back to life with theCaldwell Series 320, engineered for precision, strength, and long-lasting performance. Note: Balance length = stamped number + 1″. Match stamped number to sash weight (e.g., “07-1” = 8″ / 2–2.99 lbs).
WRS Series 320 23in Extended Travel Apex Block x Tackle Balance | 2215 (4043 lb
Bring your non-tilt, side-load windows back to life with theCaldwell Series 320, engineered for precision, strength, and long-lasting performance. Note: Balance length = stamped number + 1″. Match stamped number to sash weight (e.g., “07-1” = 8″ / 2–2.99 lbs).