Diamond PosiStop 20µL Filter Low Retention LTS Pipette Tips Diamond PosiStop 20µL filter low retention LTS-compatible pipette tips combine aerosol barrier protection with hydrophobic surface for maximum sample protection on Rainin LTS pipettes. Order from LabSupplies.com, an authorized Globe Scientific dealer. Product Specifications Specification Details Brand Diamond / Globe Scientific Type PosiStop LTS Filter Low Retention Volume 20µL Series 154305 Compatibility Rainin LTS pipettes exclusively Filter Integrated aerosol barrier Surface Low retention (hydrophobic) Material PP Frequently Asked Questions When do I need filter + low retention tips? Use combined filter/LR tips when pipetting contamination-sensitive precious samples like low-concentration proteins for PCR-based assays. Are filter LR tips more expensive than standard filter tips? Yes. The combined filter and low retention features carry a premium, but are cost-effective when sample loss and contamination would be more expensive than the tip upgrade. {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "When do I need filter + low retention tips?", "acceptedAnswer": {"@type": "Answer", "text": "Use combined filter/LR tips when pipetting contamination-sensitive precious samples like low-concentration proteins for PCR-based assays."}}, {"@type": "Question", "name": "Are filter LR tips more expensive than standard filter tips?", "acceptedAnswer": {"@type": "Answer", "text": "Yes. The combined filter and low retention features carry a premium, but are cost-effective when sample loss and contamination would be more expensive than the tip upgrade."}}]}