Wichard Forged Stainless Steel D Ring Select (See Table Below):WD-6712 6MM x 50MM "D" RING - EACH Nominal battery capacity C20: 270

Nominal battery capacity C20: 270 Ah

2 amp hours per day in the checking mode

30MM TRIPLE FXD EYE & BKT

10-24577-99

Output frequency: 50/60 Hz (configurable)

Wichard Forged Stainless Steel D Ring Select (See Table Below):WD-6712 6MM x 50MM "D" RING - EACH Nominal battery capacity C20: 270Wichard stainless steel D rings are hot drop forged from 316L stainless steel in a single piece, not just bent and welded. Forging is a far superior process, because it maintains the structural integrity of the metal and increases working load limits in real world applications. Each part is polished and passivated to create a beautiful, yet durable surface that is highly resistant to corrosion. The "W" pentagon (plus 316L) mark stamped into each part