HOMEDSUN Capillary Sampling Tubes, 100-Count Vial | Blue = Plain / Red = Heparinized | 75 mm × Ø1.1 mm | Micro-Volume Blood Tests

1.Instant Color ID — Blue caps indicate plain glass; red caps mark heparin-coated tubes, helping staff select the right tube at a glance.
2.Micro-Volume Collection (50-75 µL) — 75 mm capillaries fill effortlessly by capillary action, perfect for finger-stick samples.
3.High-Clarity Glass — Excellent transparency lets you see the packed-cell layer and plasma clearly after centrifugation for accurate HCT readings.
4.Clean, Vial-Packed Storage — Screw-cap vial holds 100 tubes, keeps them dust-free and dry, and travels easily to bedside or field sites.
5.ISO 9001 Quality & Sterile Supply — Manufactured under ISO 9001 and supplied EO-sterilized or aseptically packed for safe, ready-to-use sampling.