The 7" rear wheel for Drive Medical rollators is used on several of Drive's models. Easy to install, these wheels are useable on either the left or right side. Included with this wheel is a pair of pre-installed 608ZZ hub bearings.
Can this wheel go on the R726 series Rollator? And..
Can this wheel also be used on the front?
This 7" wheel would not work on your Drive R726 Rollator, however the 6" one would work for both the front and back on your R726. The part# is D25-4939 and it be found here: https://www.monsterscooterparts.com/6-caster-wheel-for-the-drive-medical-rollator-r726-r800.html