An upgradable, re-enterable cable management vault system (BULK 3) by Channell. The BULK 3 body accepts multiple lid types to meet light-, medium-, and heavy-duty applications. This configuration (MCN BULK1730241B0410) corresponds to the 17" x 30" footprint with 24" depth. Product literature and distributor listings describe a Tier 22 (33,750 lb) rated HDPE handhole with anti-slip cover, embedded racking, lifting pins, and multiple bolt/security fastening options. Manufacturer datasheets (BLK3 spec) are the authoritative source for full part-number decoding and detailed tables.