Grundfos 22mm Square Lug Drive Mechanical Seal — Double Cartridge — 2-Bolt Tab Setting (SEG Series)

High-quality aftermarket double cartridge mechanical seal replacement for Grundfos pumps using a 22mm shaft and a square lug drive setting system. This seal uses a 2-bolt tab locking design to hold the seal in the set position for proper installation, making it a reliable choice for wastewater and grinder pump service. Listed customer use includes Grundfos SEG.A15.55.EX.2.60M, and the seal body is marked with material code 1.4408.

At a glance

• Shaft size: 22mm

• Drive type: Square lug drive with 2 bolt tabs

• Design: Double mechanical cartridge seal

• Application: Wastewater & grinder pump duty

• Material code marking: 1.4408 (on seal body)

Tested model compatibility (based on customer use)

• SEG.A15.55.EX.2.60M

Cross reference / Alternative Search Terms

“22mm square lug drive seal” • “22mm lug drive mechanical seal” • “2-bolt tab cartridge seal” • “Grundfos SEG 22mm seal” • “SEG.A15.55.EX.2.60M seal” • “1.4408 seal”

Fitment note: Always verify shaft size (22mm) and match the square-lug drive / 2-bolt-tab setting style to your existing seal before ordering.

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