Designed to collect representative vertical water samplers with minimal cross-contamination, this compact device enables accurate, depth-specific wastewater sampling equipment for environmental monitoring, laboratory analysis, and field surveys. Its slim profile and durable, corrosion-resistant construction facilitate easy deployment and retrieval from boats, piers, or shorelines, while a secure sealing mechanism preserves water quality sampling equipment integrity during transport. Simple operation and low maintenance reduce field time, and compatibility with standard bottles and vials streamlines processing in existing workflows. Reliable and repeatable across freshwater, brackish, and marine conditions, it supports consistent data collection for water quality, research, and regulatory needs.