Replacement counterbalance spring assembly for LPL 7451 and 7452 enlargers, and Saunders/LPL and Omega/LPL 4500-II and 4550XL 4x5 enlargers. The assembly consists of two 30mm wide constant force negator springs on nylon spools with mounting hook. A similar assembly with 40mm wide springs is available for LPL 7452L, and Saunders/LPL and Omega/LPL 4550XLG enlargers - please see the alternate listing.
This Counterbalance Spring Assembly fits the following:
Note: Some later versions of these models may be fitted with the 40mm springs. Please measure your existing springs and replace with the same size.