Corbin Russwin CL3370-NON-KEYED Double/Full Dummy Trim Extra Heavy-Duty Cylindrical Lever Lock, Grade 1, Non-Handed, Fire RatedCommercial-Grade Dummy Lever Trim for High-Use ApplicationsThe Corbin Russwin CL3370 is an extra heavy-duty, Grade 1 commercial cylindrical lever lock configured as a double/full dummy trim, designed for doors where levers function as pulls only with no locking or latching operation. Engineered for 1-3/4" to 2" door thickness, this non-keyed, non-handed unit features rigid levers and is constructed with steel substrate featuring zinc dichromate treatment for corrosion resistance. Fire rated and compliant with ANSI/DHI Door Prep A115.18, the CL3370 is part of the trusted CL3300 Series platform built for demanding commercial, industrial, and institutional environments.Professional Features & BenefitsGrade 1 cylindrical lockset per ANSI/BHMA A156.2 Series 4000, Grade 1Lever Release design for vandal resistance outside lever rotates freely when lockedEZ-Install components significantly reduce installation timeIndependent return springs prevent lever sag4 solid cast lever options (Armstrong, Newport, Princeton, Frascati)Anti-rotational through-bolts at 6 and 12 o'clock positionsAccommodates 6 or 7-pin conventional cylinders and all keying levelsCL3352 Classroom Intruder function: double-cylinder lockset, always-free egressAvailable with MicroShield antimicrobial coating (suffix option code "C")CL33900 electrified option: fail safe and fail secure, 12 or 24VAC/VDCElectroLynx 8-pin connector on all electrified productsSeven-year limited warranty (two-year for electrified)Technical SpecificationsGrade: ANSI/BHMA A156.2 Series 4000, Grade 1Handing: Non-handed (except FZD trim)Door Thickness: 1-3/4" (44mm) 2" (51mm) standard; optional over 2" 2-1/4" (57mm)Backset: 2-3/4" (70mm) standard; optional 3-3/4" (95mm) and 5" (127mm)Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) fire latchAuxiliary Latchbolt: Deadlocking prevents manipulation when door is closedLock Chassis: Steel, zinc dichromated for corrosion resistanceFront: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8"Strike: Wrought brass or stainless steel ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to centerCylinder: Brass, 6-pin L4 keyway, 0-bitted standardElectrified Voltage: 12VAC/DC or 24VAC/DC (CL33900 Series)Electrified Current: 250mA @ 12VAC/VDC; 150mA @ 24VAC/VDC, continuous duty solenoidCertifications: ANSI/BHMA A156.2 Grade 1; UL-cUL listed; ANSI A117.1 Accessibility; California State Fire MarshalWarranty: Seven-year limited (two-year for CL33900 electrified)Professional ApplicationsCommercial Office Buildings Inactive Door LeavesEducational Facilities Classroom and Corridor Paired DoorsHealthcare Institutions Patient Room and Suite EntriesRetail Establishments Display and Storefront Paired DoorsIndustrial and Warehouse Facilities Interior Passage DoorsMulti-Tenant Residential Properties Common Area DoorsGovernment and Municipal Buildings High-Traffic Interior ApplicationsWhy Choose Corbin Russwin Quality?Corbin Russwin CL3300 Series cylindrical lock products deliver extra heavy-duty, Grade 1 commercial reliability with steel and zinc dichromated construction engineered for years of dependable operation in demanding environments. The CL3370 dummy trim is backed by a 7 Year Limited warranty and complies with ANSI/DHI Door Prep A115.18, providing confidence for architects, specifiers, and installers on commercial projects. With features like EZ-Install components, Lever Release vandal resistance, and independent return springs, Corbin Russwin delivers professional-grade performance where consistent quality is essential.