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WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 Block & Tackle Balances - Non-Tilt Windows
WRS Caldwell Series 300 Block & Tackle Balances - Non-Tilt Windows
WRS Caldwell Series 300 Block & Tackle Balances - Non-Tilt Windows
WRS Caldwell Series 300 Block & Tackle Balances - Non-Tilt Windows
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance
WRS Caldwell Series 300 block and tackle window balance

WRS Caldwell Series 300 Block & Tackle Balances - Non-Tilt Windows

Caldwell Series 300

The Series 300 is a standard block & tackle window balance designed for sideload / non-tilt windows. It is suitable for residential and commercial window applications and is available in multiple lengths and weight capacities to match the requirements of the existing balance.

These balances use a 5/8" channel depth and are supplied with the top and bottom balance guides already assembled.

Important: Balance Length vs. Stamp

The actual balance length will always be one digit higher than the stamp or SKU number. For example, a balance with SKU 01-3007-1 will be stamped 07-1 and will measure 8" in length.

Choose Your Size

Refer to the selector below to select your balance length.

Series 300 Balance Selector

Select Your Balance Length

Choose the length of your existing balance below to view the corresponding replacement.

Available Lengths Measurements shown in inches
8" 9" 10" 11" 12" 13" 14" 15" 16" 17" 18" 19" 20" 21" 22" 23" 24" 25" 26" 27" 28" 29" 30" 31" 32" 33" 34" 35" 36" 37" 38" 39" 40" 41" 42" 43" 44" 45" 46" 47" 48" 49"
i

Select the length that matches your existing balance to view the corresponding product. Verify your measurements and product specifications before ordering.