Net filtration pressure equals A) (blood hydrostatic pressure -blood colloid osmotic pressure) + (interstitial fluid hydrostaticpressure - interstitial fluid osmoticpressure) Net filtration pressure isthe difference between pressure forcing fluid into glomerular spaceand pressure resisting filtration. At the arterial end of acapillary the net filtration pressure is equal to (net hydrostaticpressure) - (net osmotic pressure).