Zurn Z624 Isolation Deck Drain – Floating Slab Drain System

Product Overview

The Zurn Z624 Isolation Deck Drain is designed for floating slab and structural deck applications where movement, vibration, and acoustic isolation must be absorbed without compromising drainage performance. Featuring Dura-Coated cast iron upper and lower bodies, a neoprene flex gasket, and an isolation nipple, this drain ensures long-term reliability in demanding commercial and industrial environments.

Features & Benefits

• Floating slab design with neoprene flex gasket and isolation nipple
• Dura-Coated cast iron upper and lower bodies for long service life
• Clamp collar with weep holes supports proper flashing installation
• Available with standard cast iron or polished nickel bronze top
• Offered in No-Hub and Neo-Loc outlet configurations

Specifications

• Model: Z624 / ZN624
• Construction: Dura-Coated Cast Iron
• Grate: Slotted grate with 18 sq. in. open area
• Finishes: Z624 (Cast Iron), ZN624 (Nickel Bronze)
• Connections: 2", 3", 4", 6" NH; 2", 3", 4" NL
• Body Heights: 5-1/4" NH; 4-5/8" NL
• Weight: 64 lbs

Installation Tips

• Ensure membrane flashing is properly clamped with weep hole alignment.
• Do not over-compress the neoprene flex gasket.
• Maintain proper slope toward the drain during installation.
• Protect nickel bronze components during concrete work.

FAQs

Q1: What makes the Z624 ideal for floating slabs?
A: Its neoprene flex gasket and isolation nipple allow slab movement while preserving drain alignment.

Q2: What outlet options are available?
A: No-Hub (NH) and Neo-Loc (NL) configurations.

Q3: Does this drain include weep holes?
A: Yes, the clamp collar has integrated weep holes.

Q4: Can I order a vandal-proof top?
A: Yes, specify the –VP suffix.

Q5: Is a nickel bronze top available?
A: Yes, choose model ZN624.