This is the solid aluminum, # L-FET Roller; Extruded Aluminum Wheel Assembly; Single Wheel Replacement Unit; SEE PICTURES AND MEASUREMENTS as needed; Sliding Door Rollers Wheels Assemblies | Patio and Screen Door Parts - NOTE: These Rollers Are Priced Per Pair ( 2 Wheels )  

Screen Door Roller Assembly Parts, Item Number:  PE-FEP - SOLD IN PAIRS ONLY.  Description:  Patio Screen Door Roller Assembly.  
 

Screen Door Roller Replascement Sets - Get the Right Screen Roller for those old patio door screens like these as shown. Model # LEE-PRB-RH/LH Series Steel Roller Wheels Assemblies. These are sold in sets of Four (4) Each. Two (2) Pairs - One (1) Upper Pair and One (1) Lower Pair of Screen Door Roller Assemblies. 

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Screen Door Roller Replacement Sets | L/H R/H - Milgard Style Screen Door Roller Replascement Sets - Get the Right Mil-Guard  Screen Roller for those old Milgard patio door screens like these as shown. Model # LEE-PRB-RH/LH Series Steel Roller Wheels Assemblies. These are sold in sets of Four (4) - Two (2) Pairs - One (1) Upper Pair and One (1) Lower Pair of Screen Door Roller Assemblies.