

Graco 288166 TSL Fluid is a throat seal liquid designed to lubricate and protect piston pump packings, preventing paint from drying and extending pump life.
Graco 288166 TSL Fluid is a professional-grade Throat Seal Liquid (TSL) supplied in a convenient 6-pack of 1-quart bottles. It is specially formulated to protect the displacement rod and packings in Graco piston-type airless pumps by preventing paint and coatings from drying, hardening, or building up inside the wet cup area.
Regular use of TSL reduces friction, minimizes packing wear, and helps extend pump life by keeping internal components lubricated during operation, shutdown, and storage.
| Product Number | Description | Pack Size | Application |
|---|---|---|---|
| 288166 | Throat Seal Liquid (TSL) | 6 × 1 Quart Bottles | Lubrication & protection for airless pump packings |
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