MODEL · ST3L4R1521
15 × 21mm Steel Housing Quad Sliding Door & Window Roller Assembly – ST3L4R1521
ST3L4R1521 stainless steel roller for sliding doors and windows, engineered for stable travel and durable service. OEM supply from SLIDEVIA Hardware worldwide.
Size245 × 15 × 21 mmMaterialSteel
RELATED SIZES & MATERIALS
Compare specifications—not appearance.Choose the exact roller
Current selection245 × 15 × 21 mmSteelST3L4R1521
235 × 15 × 13 mmSteelST3L4R1513View →230 × 15 × 17 mmSteelST3L4R1517View →245 × 15 × 21 mmIronIRC3L4R1521View →245 × 15 × 21 mmSteelST3L4R1521Selected238 × 15 × 24 mmSteelST3L4R1524View →
A 1 mm difference can affect fit. Confirm the housing width, height and length against your drawing before ordering.
Compare all models in the 15mm Quad Roller Series →Volume pricing
3,000+ pcsUS$ 1.40 / pc
10,000+ pcsUS$ 1.35 / pc
50,000+ pcsUS$ 1.30 / pc
PRODUCT & OCEAN FREIGHT
Model ST3L4R1521LCL sea freight estimate
Unit product priceUS$ 1.40 / pc
Product amountUS$ 4,200.00
Chargeable freight1.00 RT · Weight
Ocean freight / pieceUS$ 0.040 / pc
Estimated ocean freightUS$ 120.00
Products + ocean freightUS$ 4,320.00
Estimated port-to-port LCL ocean freight, updated August 2026. Charged by W/M: total CBM or gross weight in metric tons, whichever is greater; minimum 1 RT per shipment. Carton data is used when available; otherwise product dimensions include a packing allowance. Excludes local handling, customs clearance, duties, taxes, insurance and final delivery. Final freight is confirmed at booking.
Product specifications
- Size
- 245 × 15 × 21 mm
- Material
- Steel
- Product weight
- 0.2 kg
- Units per carton
- 100 pcs