NEMA L6-30 Connector 30A, 250V by POWERTRONICS CONNECTIONS

Leviton 2621 30 Amp, 250 Volt, NEMA L6-30P, 2P, 3W, Locking Plug, Industrial Grade, Grounding - Black-White

Leviton 2620 30 Amp, 250 Volt, Flush Mounting Locking Receptacle, Industrial Grade, Grounding, V-0-MAX, Black

Powertronics NEMA L6-30 Plug

Superior Electric YGA017F Twist Lock Electrical Receptacle 3 Wire, 30 Amps, 250V, NEMA L6-30R

Eaton S42-SP-L Commercial Grade Angle Vinyl Power Plug with 30/50-Amp, 250-Volt, 6-30/6-50-NEMA Rating, Black

Dernord 240V 5500W Tri-clamp Ripple Heating Element Stainless Steel Immersion Water Heater with 3-Wire Electrical Locking Plug (1.5 Inch Tri clamp)

Superior Electric YGA017 Twist Lock Electrical Plug 3 Wire, 30 Amps, 250V, NEMA L6-30P

Leviton 2721 30 Amp, 250 Volt 3-phase, NEMA L15-30P, 3P, 4W, Locking Plug, Industrial Grade, Grounding - Black-White

Leviton 2711 30 Amp, 125/250 Volt, NEMA L14-30P, 3P, 4W, Locking Plug, Industrial Grade, Grounding - Black-White