You searched for "parallel clamp"
HI-GRIP
HI-GRIP A2/304 Stainless Steel Slotted Screw Hose Clip, 0.9mm Band Width, 300mm ID
Part: HGS300BP
Large stainless steel hose clamp for securing pipes and tubes up to 300mm diameter.
Multi-Torque
Multi-Torque Stainless Steel 316 Slotted Hex Connector, 16mm Band Width, 270mm ID
Part: MTJC300P
Heavy-duty stainless steel hose connector clip for securing large diameter pipes and ducts.
Jubilee
Jubilee Stainless Steel Slotted Screw Worm Drive, 16mm Band Width, 270 → 300mm ID
Part: HT300
Large stainless steel worm-drive hose clip for pipes 270 to 300mm in diameter.
HI-TORQUE
HI-TORQUE Stainless Steel Slotted Hex Worm Drive, 16mm Band Width, 270 → 300mm ID
Part: HTM300P
Stainless steel worm drive hose clip for pipes and tubes 270-300mm diameter.
HI-GRIP
HI-GRIP Mild Steel Slotted Screw Hose Clip, 0.9mm Band Width, 300mm ID
Part: HGZ300BP
Heavy-duty steel hose clip for securing large diameter pipes and tubes in industrial applications.
HI-GRIP
HI-GRIP A4/316 Stainless Steel Slotted Screw Hose Clip, 0.9mm Band Width, 300mm ID
Part: HGJ300BP
Large stainless steel hose clip for securing pipes and tubes in industrial applications.