Old Casement Window Crank Roto Operators

Old Casement Window Crank Roto Operators - also available in Coastal Stainless Steel  .. SEE PICTURES AND DIAGRAMS. Old number stamp and stampings may include stampings on old operator parts, arms etc. which are manufacturing numbers indicating die casting id numbers, housings and different versions of operators used. There were many over the years like: 11.43, 11.42, 31545, 31546, 45002, 40008, P233, DC, P 234DC, P233DC, P234DC, 20755, 31230, 40887, 40941, 40942, 31538, 31539, 30841, 30842, 30472, 30470, 20810, 20544, 20755, Wi1515, 20748, 30636, 30637, 20544, 31368, 20810, 45275, Truth, Entrygard, 31545 - old style operators can date back to the 1960's, 1970's, 1980's, 1990's and the 2000's - Normally installed under the window bottom rail or sill stop cover.  

DETERMINE HANDING - look at pictures below.  LINK LENGTHS - 4 7/16" /  2 3/4"  / or 3 7/8"  

Specify "HANDING"  and  Link Arm Measurement in the COMMENT SECTION @ CHECKOUT

If none are specified we will ship the standard LEFT HANDING ( as shown ) and the Standard 4 7/16" Arm.