Toro Owners Manual - 1 
From inside (document excerpt):
830S Conversion Assembly 835S Conversion Assembly 720 Conversion Assembly 855S Conversion Assembly, ribless body 850S Conversion Assembly 1 ” Models DT34-3134* DT34-3537* 834S-3134 834S-3537 DT35-3134* DT35-3537* 835S-3134 835S-3537 F/C P/C Radius 55′-80′ 70′-90′ 55′-81′ 69′-91′ 55′-80′ 70′-90′ 52′-80′ 76′-92′ Flow 14.0-35.0 GPM 28.0-45.0 GPM 13.7-35.4 GPM 28.2-45.3 GPM 14.0-35.0 GPM 28.0-45.0 GPM 13.7-37.0 GPM 32.4-45.3 GPM 630 X 855S Conversion Assembly