4" Dual Body Disc Filter – 120 Mesh, 395 GPM, 4" MNPT, Stainless Clamp

RKD490N – 4" Dual Body Disc Filter for Large-Scale Commercial Irrigation

The RKD490N is a 4" dual-body disc filter engineered for large-scale commercial agricultural irrigation systems and pump station discharge applications. With a 395 GPM flow rating, inside/outside filtration across dual filter bodies, and a stainless steel high-pressure clamp, the RKD490N provides the filtration capacity required for high-output farm systems, large orchard blocks, and commercial greenhouse operations where a single compact filter point is preferred over manifolded arrangements.

Key Features and Benefits

• 395 GPM flow capacity — one of the highest single-unit disc filter ratings available, suited for large-diameter mainlines and pump station discharge
• Dual body design — two filter bodies in one unit doubles the filtration area compared to a single-body design, extending service intervals at high flow rates
• Inside/outside filtration — water passes through the disc cartridge from both surfaces, maximizing particle capture and extending the effective filtration area per cleaning cycle
• Stainless steel high-pressure clamp — corrosion-resistant construction for reliable sealing under sustained high-flow and outdoor conditions
• 110 PSI working pressure — compatible with standard commercial pump discharge pressures
• 4" MNPT connection — standard thread for large-diameter agricultural mainlines and pump station plumbing
• Replacement cartridges available — uses RKD350N series cartridges: 80 mesh (RKD350N-CART80), 120 mesh (RKD350N-CART120), and 150 mesh (RKD350N-CART150)

Dimensions

• Height: 48.89" (1240 mm)
• Distance between connections: 14.17" (360 mm)

Spare Parts Available:

• O-Ring Large Filter Main Body (D230N, D350N, D490N, TS230, TS340, TS350, TS225NSA, TS340NSA, RKTS490, HC225, HC350): RKT-ORING
• Stainless Clamp Main Body (D230N, D350N, D490N, TS230, TS340, TS350, TS225NSA, TS340NSA, RKTS490, HC225, HC350) : RKSS-CLAMP
• RKTS-CARTORING (TS230, TS340, TS350, TS225NSA, TS340NSA, RKTS490): RKTSCART-ORING
• 80 mesh - Disc Cartridge for 3" and 4" filter (RKD350N,RKD490N): RKD350N-CART80
• 120 mesh - Disc Cartridge for 3" and 4" filter (RKD350N,RKD490N): RKD350N-CART120
• 150 mesh - Disc Cartridge for 3" and 4" filter (RKD350N,RKD490N): RKD350N-CART150