The standard product recommended *BY* GlenRaven Mills (Sunbrella) is
Apseal 303 Fabric Guard.... all others will void any remaining warantee.

Sunbrella will recommend Aqua-tite only when 303 Fabric Guard wont
restore the repeliency and/or the fabirc is near the end of its service
life.

Dont confuse 303 Fabric Guard with 303 Aerospace Protectant a UV blocker
used on zippers, vinyl windows, inflatables, etc.