Source For ANCO Turtlebacks?
Search for Part # = '43-160' and Manufacturer = 'TRICO' and Part Type = '16" Blade Refill'
Price
TRICO Part # 43160 Long Frame Metal Refill; 16" (405mm) For Trico and Anco Long Frame Metal Blades
Category: 16" Blade Refill
$5.15
I don't know if they make a small 12" it looks like they start at 13" use the part number search on rock auto 43- and size is first two numbers 13 = 13" 16= 16" just add a zero at the end.